Rotary engine.



PATENTED AUG'. 25,

J; F. MUNCEL' ROTARY ENGINE.

APPLICATION FILED JAN. 19. 1903.

no nonni..

Wl TME SSE S: @.M

mmNEy zen of the United States, residing-at Everett,-

ivo. 737,127.

rammed August 25, 1903.

UNITED STATES PATENT OFFICE.

' JOHNE. .MUNoEn or EVEEETT, WASHINGTON.v

ROTARY ENGIN E.

sPEcInIoAmroN. forming part of Letters Patent No. 737,127, dated VAugust 25,1903.

Application filed January 19, 1993A. -ISerial No. 139,509. (No model.)

To all whom t m'ctyconcvern: l .i

Be it known thatL-JOHN F. MUNCEY, a citiin the county of Snohomish and State of Washington, have'invented certain new and useful Improvements'in Rotary Engines, of which the following is a specication, reference being had therein to the accompanying drawings.

This invention relates to improvements in rotary engines; and its object is. to provide an engine of this class which will produce a maximum of power with a'minimum consumption'of steam. I attain this object by provi'dingimproved facilities for automatic-i ally regulating the admission of steam in such manner as to obtain a high degree of efficiency, by the improved construction of a steam-balanced rotary driving-wheel, and by the various other lmechanical details of construction and vcombinations thereof, as will be hereinafter described and claimed, and

illustrated in the accompanying drawings, in which- Figure lis a verticaltransverse section of a rotary engine embodying my improvements; and Fig. 2 is a longitudinal section of same, taken on line 2y 2'of Fig. l. Figs. 3 and 4 are perspectiveviews, respectively, of one of the steam-abutments and one of the valves shown in the other views.

In the said drawings the letterA denotes the engine shell or casing, provided with a cylindrical bore A'. B is a rotary wheel of less diameter than the said bore and is mounted on a longitudinal shaft S, which is journaled in bearings s of the cylinder ends a 'and provided with suitable stufiing-boxes, such as d. A plurality of win gs or pistons C extend from the periphery of the said wheel to the circumferential surface of the bore and are each formed with an inclined lor tangential advance face c and a radial following face c.

Steam inlet and exhaust ports D and E, respectively, are provided in the casing and arranged, preferably, so that each pair will be diametrically opposite-that is, an inlet and exhaust port on each side-thus equalizing as far as possible the steam-pressure upon the wheel, and the friction is consequently reduced. The exhaust-ports lead directly from the cylinder and are always open. -The inlet-ports are connected to the cylinder by cylindricalshaped valve chambers F, in which are pivotally mounted the Valves G and abutxnents H. Thelatter are each hinged central of the said chamber by trunnions h h', of which h projects outside of the casing 'through stuffing-box h for making connec-v tion withva lever-arm I, carrying a counterweight t', whereby the abutment is prevented from slamming against its bearing-seats M y and at the same time can be adjusted toregulate the speed of its motion. The abutments extend,-inclusive of the wiping-stri ps herein-v after mentioned, across the entire diameter of the valve-chambers to peripheral surface Vof the wheel, while the said bearing-seats expivotallyfconnected to the abutment by pin Zeccentric of the valve-chamber and the axis of said trunnions.

Suitable packing, suchas rings P, are seated `in annular grooves in the wheel ends, and at the wiping ends of the pistons, valves, and abutments are strips N, T-shaped in crosssection and having their webs inserted in slots O, in which preferably are springs act-4 ing to force the packing'- strips to press against their respective wiping-surfaces. t f

The operation of the invention will now be described, reference being had to Fig. l, wherein one of the steam-inlet ports is shown closed and the other open. The steam enters the cylinder through the said open port and acting between the adjacent abutment and piston drives the latter until the said valve is closed by the following piston to rotate the wheel in the direction indicated by the arrow y. The revolving pistons severally engaging the shank ends of the valves to move the same to close the inlet-ports and. the said ends moving forwardly with the actuating-piston carry the inner ends of the IOO permit the pistons passing thereby. Immediately a valve-shank is released by the engaged piston the steam-pressure on the face of the valve unseats the same by reason of the valve beinghinged eccentric of the chamber or to one side of its axis, when the steam is admitted freely and accelerates the seating of the abutment.

What I claim as new, and desire to secure by Letters Patent, is

l. In a rotary engine, the case A having cylindrical Valve-chambers F, inlet-ports D, eX- haust-passages E and the rotary wheel B provided with pistons C, in combination with valve G provided With a bent shank g projecting in the path of said pistons, said Shanks being fnlcrumed eccentric of the valve-chamber, substantially as set forth.

2. In a rotary engine, the combination of T-shaped packing-pieces N with the pistons C, oscillating abutment H and the oscillating valve G, and the case A and the Wheel B, substantially as set forth.

3. In a rotary engine, the oscillating abutment I-I hinged on trunnions h 7L intermediate its length and projecting into wiping contact with the periphery of wheel B, and its pistons C, the arm I and counterweight t',

in combination with the case A, and the Wheel B, substantially as set forth.

4. In a rotary engine, the oscillating abutment I-I, having aperture la in combination with the valve G having a shank extended through said aperture and pivotal connection between the said abutment and the valveshank, substantially as set forth.

5. In a rotary engine, the combination with the case A, of the Wheel B having pistons C upon the peri pherythereof,cylindrical valvechamber F, steam-inlet D opening in said chambers, abutments H fulcrumed concen tric of said valve-chambers and having their ends normally in wiping contact with the Wheel and cylindrical Walls of the valvechambers, the valves G provided with Shanks g extending through said abutments and terminating in the path of said pistons, said valves being fulcrumed eccentric of said valve-chambers, substantially as set forth.

In testimony whereof I afiixmy signature in presence of two Witnesses.

JOHN F. MUNGEY.

Witnesses:

PIERRE BARNES, HENRY S. NooN. 

